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Finding the Fourth Proportional to 7,661,817.60, 11,491,113.60 and 3,871,737.60

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Solution

The fourth proportional to 7,661,817.60, 11,491,113.60 and 3,871,737.60 is: 5,806,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661,817.60 : 11,491,113.60 = 3,871,737.60 : x
  2. Step 2: Convert to fraction form
    7,661,817.60/11,491,113.60 = 3,871,737.60/x
  3. Step 3: Cross multiply
    7,661,817.60x = 11,491,113.60 × 3,871,737.60
  4. Step 4: Simplify right side
    7,661,817.60x = 44,490,576,590,991.36
  5. Step 5: Solve for x
    x = 44,490,576,590,991.36/7,661,817.60
  6. Step 6: Final answer
    x = 5,806,791.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.